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Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

66°F

19°C

Humidity 69%
Wind Speed N 6 mph
Barometer 30.05 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 11 Oct 9:55 am CDT
Extended Forecast for

Altamont IL

  • Today

    Today: Sunny, with a high near 84. Northwest wind 3 to 5 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Mostly cloudy, then gradually becoming sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 91 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Clear, with a low around 67. Southwest wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 67 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. West southwest wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 66. Light west southwest wind. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 81. North northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 84. Northwest wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 59. Light and variable wind.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Monday Night
Clear, with a low around 67. Southwest wind 6 to 8 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 91. West southwest wind 7 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 66. Light west southwest wind. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 81. North northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 60.
Thursday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.73°W (Elev. 600 ft)
Last Update:
9:37 am CDT Oct 11, 2026
Forecast Valid:
10am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation